| 摘要 |
Photographic element comprising a support and a silver halide emulsion layer comprising in said emulsion layer and/or in a water-permeable layer coated at the same side of the support as said emulsion layer a compound corresponding to the following general formula: <IMAGE> wherein: each of R1, R2, and R3, which may be the same or different, can represent hydrogen, C1-C8alkyl, or Alk1 - X - Alk2 - Y -, wherein: Alk1 is C1-C8alkyl, which may be substituted, X is -O- or -S-, Alk2 is C1-C8alkylene, which may be substituted, and Y is a single bond, -O-, -S-, -CONH-, -SO2NH-, or -NHCONH-, R3 can alternatively represent C1-C8alkyl-thio, the C1-C8alkyl group of which can be substituted, at least one of R1, R2, and R3, however, being other than hydrogen and other than C1-C8alkyl. The invention disclosed includes compounds per se, which correspond to said general formula. |
